3447530945 has 4 divisors (see below), whose sum is σ = 4137037140. Its totient is φ = 2758024752.

The previous prime is 3447530941. The next prime is 3447530971. The reversal of 3447530945 is 5490357443.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5490357443 = 37 ⋅148388039.

It can be written as a sum of positive squares in 2 ways, for example, as 1030923664 + 2416607281 = 32108^2 + 49159^2 .

It is a cyclic number.

It is not a de Polignac number, because 3447530945 - 2² = 3447530941 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3447530896 and 3447530905.

It is not an unprimeable number, because it can be changed into a prime (3447530941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 344753090 + ... + 344753099.

It is an arithmetic number, because the mean of its divisors is an integer number (1034259285).

Almost surely, 2^3447530945 is an apocalyptic number.

It is an amenable number.

3447530945 is a deficient number, since it is larger than the sum of its proper divisors (689506195).

3447530945 is an equidigital number, since it uses as much as digits as its factorization.

3447530945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689506194.

The product of its (nonzero) digits is 907200, while the sum is 44.

The square root of 3447530945 is about 58715.6788685952. The cubic root of 3447530945 is about 1510.6692565667.

The spelling of 3447530945 in words is "three billion, four hundred forty-seven million, five hundred thirty thousand, nine hundred forty-five".